5 Lexical conventions [lex]

5.13 Literals [lex.literal]

5.13.7 Pointer literals [lex.nullptr]

pointer-literal:
	nullptr
The pointer literal is the keyword nullptr.
It is a prvalue of type std::nullptr_­t.
[Note
:
std::nullptr_­t is a distinct type that is neither a pointer type nor a pointer-to-member type; rather, a prvalue of this type is a null pointer constant and can be converted to a null pointer value or null member pointer value.
end note
]